3 duong vuong goc (Lam bang cacbi cuc dep)
Chia sẻ tài liệu: 3 duong vuong goc (Lam bang cacbi cuc dep) thuộc Bài giảng khác
Nội dung tài liệu:
2.0.0 (279,Windows NT) stopped off 1.000 %8 %1 O_point defined (0,0,0,1) sphere_point_style normal_point_size red hidden_layer point3_base_point_size I_vector defined (0,0,0,1) (1,0,0) sphere_point_style normal_point_size tomato hidden_layer solid_curve_style normal_curve_radius orange_red vector3_base_point_size vector3_base_curve_radius J_vector defined (0,0,0,1) (0,1,0) sphere_point_style normal_point_size tomato hidden_layer solid_curve_style normal_curve_radius lawn_green vector3_base_point_size vector3_base_curve_radius K_vector defined (0,0,0,1) (0,0,1) sphere_point_style normal_point_size tomato hidden_layer solid_curve_style normal_curve_radius steel_blue vector3_base_point_size vector3_base_curve_radius [ document_toolbar default_document_toolbar ] Z0_Plane defined (0,0,1,0) normal_surface_thickness solid_surface_style ivory default_layer solid_curve_style normal_curve_radius dim_gray template_plane3_base_surface_thickness plane3_base_curve_radius doc_settings -215 0 document_window 0 600 600 0 0 2 X1_point no_display no_picking (1,0,0,1) Y1_point no_display no_picking (0,1,0,1) Z1_point no_display no_picking (0,0,1,1) %1 1 29.700 21.000 %8 %46 %6 18.500 35.000 %7 origin3 %7 ((-0.57357643635104616,-0.25992075795664726,0.7768212608097671,0),(0.81915204428899169,-0.18199847405842587,0.54393610266057002,0),(0,0.94832365520619932,0.31730465640509209,0),(0,0,0,1)) %8 1.500 1.500 18.000 18.000 default_surface_clipping_transfo3 %7 central_medium_lens default_layer default_clipping_transfo3 white no_auto_rotate %9 I_vector O_point X1_point %10 J_vector O_point Y1_point %11 K_vector O_point Z1_point %15 defined (-2.0588543928969703,1.1295917360457184,5.5502255734210984,1) sphere_point_style very_large_point_size red default_layer point3_base_point_size %16 (-2.0588543928969703,1.1295917360457184,5.5502255734210984,1) %15 %17 %18 %15 %18 defined italic 14 Helvetica -0.294 0.309 A black default_layer %19 defined (1.5157627089346024,-5.0699519337604677,0,1) sphere_point_style normal_point_size red hidden_layer point3_base_point_size %20 (0.28146060997098454,-0.94143480070359853,0.18568909784620397) %19 Z0_Plane %21 %22 %19 %23 %22 defined (-0.10473729975131835,-0.2793602290322007,0,0,0,-0.9544568929374857) default_layer solid_curve_style large_curve_radius cornflower_blue line3_base_curve_radius %23 defined (5.263819921600021,4.9270417241061359,0,1) sphere_point_style normal_point_size red hidden_layer point3_base_point_size %24 (0.72315357297463889,0.67688634490737765,0.13738189826881939) %23 Z0_Plane %25 (0.61966470969622367,0.78486664316754784) %26 %22 %26 defined italic 14 Helvetica 0.000 0.000 d black default_layer %27 %28 %15 Z0_Plane %28 defined (0,0,-0.39178471894522637,-0.4425567808295221,-0.8066276896702842,0) default_layer solid_curve_style large_curve_radius lawn_green line3_base_curve_radius %29 defined (-2.0588543928969703,1.1295917360457184,0,1) sphere_point_style very_large_point_size red default_layer point3_base_point_size %30 %29 Z0_Plane %28 %31 %32 %29 %32 defined italic 14 Helvetica 0.388 -0.623 B black default_layer %33 %34 %29 Z0_Plane %22 %34 defined (0.88787909739097792,-0.33288224128585531,0,0,0,-0.31758482623180784) default_layer solid_curve_style large_curve_radius green line3_base_curve_radius %35 defined (3.1130966554103385,-0.80946805468515426,0,1) sphere_point_style very_large_point_size red default_layer point3_base_point_size %36 %35 %34 %22 %37 %38 %35 %38 defined italic 14 Helvetica 0.233 -0.328 C black default_layer %44 (0.7558780979496067,-0.64247756421016022,0.12597968299160103) %45 Z0_Plane %45 defined italic 14 Helvetica -0.020 -0.029 P black default_layer %46 20.000 1.500 4.500 18.000 %47 %47 Định l� ba đường vu�ng g�c
Cho đường thẳng d tr�n mặt phẳng P v� điểm A kh�ng thuộc mặt phẳng P.
Cho đường thẳng d` đi qua A v� vu�ng g�c với mặt phẳng P tại B.
Cho đường thẳng d`` tr�n mặt phẳng P đi qua B v� vu�ng g�c với đường thẳng d tại C.
Khi đ� AC sẽ vu�ng g�c với đường thẳng d. Tại sao ?
